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学习29-sockops遇到报错“iperf3: error - unable to send control message: Permission denied #117

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YuSongHao opened this issue May 8, 2024 · 0 comments

YuSongHao commented May 8, 2024

系统版本：Ubuntu-22.04
内核版本：6.5.0-28-generic

步骤：root用户按29-sockops的readme步骤，安装依赖和submodule之后，完成make和 load.sh，使用sudo iperf3 -s -p 5001建立tcp服务端，使用sudo iperf3 -c 127.0.0.1 -p 5001进行测试。

表现：iperf3报错error - unable to send control message: Permission denied.
简单debug发现是bpf_redirect.bpf.c中最后的bpf_msg_redirect_hash返回了SK_DROP（0）。

想求助下一步应该如何排查和解决。

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